body {
  font-family: 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, #0f172a, #020617);
  color: white;
  margin: 0;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px;
}

/* HERO */
.hero {
  text-align: center;
  padding: 20px 20px;
}

/* SECTIONS */
.section {
  margin-top: 120px;
  text-align: center;
}

.section h2 {
  margin-bottom: 30px;
}

/* GRID SYSTEM */
.grid {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}